Metallic roofing-plate



(No Model.)

G. PATTEN.

, METALLIC ROOFING PLATE.

No.v 354,484. l Patented Deo. 14, 1886.

@Hom/1 e1 J( UNITED STATES PATENT OFFICE.

GEORGE PATTEN, OF CLARKSVILLE,-ASSIGNOR TO MOULTRIE PATTEN, OF

NASHVILLE, TENNESSEE.

M ETALLIC ROOOFINQ-PLATE.

SPECIFICATION forming part of Letters Patent No. 354,484, dated December14, 1886.

' Application tiled November 17,1885. Serial No. 183,133. (No model.)

My invention refers to the construction of` the lateral edges ofmetallic roong-plates,

1o whereby the plates are readily attached to the roof and a water-tightconnection formed between adjacent plates in a manner which admits ofthe contraction and expansion of the material.

Its nature consists in constructing the roofing-plate with one lateraledge doubled toward a groove which receives the edge of the adjacentplate, the doubled edge acting as a spring to hold the edge of theadjacent plate, and forming a water-tight seam, as will be hereinafterset forth. l

In the annexed drawings, forming part of this specification, Figure l isa perspective view of the rooiingplate, and Fig. 2 is a crosssection ofjoint between adjacent plates.

The saine letters of reference denote the same parts in both the gures.

The plate P has near its right side an outward projection, c, whichforms a recess between it and the plate-surface for the reception of theopposite edge of the next adjacent plate. Beyond this recess the edge ofthe plate is doubled over, as shown at f, so that the free edge ot' thisdoubled part will forni a 35 spring, a, rising a little above theoutward projection c. The doubled edge f has perfo rations for the nailswhich fasten the plate to the roof. The opposite edge of the plate has araised flange, d,with a shoulder, b, the depth 4o that the projection cis above the plate-surface.

To use these plates the left-hand edge of the first plate is turned downand nailed to the edge of the sheeting. Nails through the perforationsin the double edge f complete the fastening of this plate to the roof.The edge of the iiange d of the next plate is then inserted into therecess i of the n'rst plate, and after the plate is pushed to the extentof the recess this second plate is nailed down through the perforationsin' its doubled flange f. The 5o spring a'of the first plate pressesagainst the under surface of the ange d and holds the flange np againstthe top of the recess. The depth of the shoulder b admits of the plateresting flat upon the root" after the joint is formed. The space betweenthe spring a and the plate forms a conduit for any water that might passbetween the flange d and the projection c, the doubled edge f preventingits passage to the sheeting. The seam thus formed 6o between adjacentplates is water-tight, and at the same time admits of the contractionand expansion of the metal under the different condi tions oftemperature to which it is exposed.

Vhat I claim as new and of my own invend5 tion, and desire to secure byLetters Patent, 1s-

1. A metallic rooing-plate having one edge doubled toward a groove whichreceives the edge of the adjacent plate, the doubled edge `7o acting as-a spring to hold the edge of the adjacent plate, and forming awater-tight seam, substantially as shown and described.

2. A metallic roofing plate formed at one edge with the raised iange dand shoulder b, and at the opposite edge with the outward proj cction c,forming a recess, i, and the doubled edge f, forming the spring a,substantially as described.

GEORGE PATTEN.

V tnesses:

C. E. CoUTs, ED. S. MUNEoRD.

